Current Status of Research on Pollen Vitality and Stigma Receptivity of Wuren Walnut (Juglans sigillata) in Guizhou Province.

Wuren walnut is a unique germplasm resource of Juglans sigilata in Guizhou Province, named after its purple and black seed coat. It is a typical medicinal and edible plant with high nutritional value and good taste compared with ordinary walnut. The color of its inner seed coat is different from that of ordinary walnut, which is mostly light yellow. Wuren walnut has great market potential for development. To lay a theoretical foundation for the future breeding of improved varieties, pollination tree configuration, and hybrid breeding of Wuren walnut in Guizhou Province, this paper summarized the current research status of pollen vitality and stigma acceptability of Guizhou Wuren walnut in recent years, and looked forward to future research and application. [ABSTRACT FROM AUTHOR]